Van seat



FIG. 1 is a perspective view of a seat for a van embodying my new design;

FIG. 2 is a front view of the seat;

FIG. 3 is a rear view of the seat;

FIG. 4 is a side view of the seat;

FIG. 5 is a top view of the seat, and

FIG. 6 is a bottom view of the seat. 

The ornamental design for a van seat, substantially as shown. 